Active auxiliary steering differential gear

A technology for auxiliary steering and differential devices, which is applied in the direction of differential transmissions, transmissions, belts/chains/gears, etc., can solve the problems of high output power consumption, immobilization of vehicles, and high maintenance costs, so as to improve steering ability, Prevent wheel slippage and save energy

CN108458083APending Publication Date: 2018-08-28营山县臻安机电科技研究所
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-08-28

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Abstract

The invention discloses an active auxiliary steering differential gear. The active auxiliary steering differential gear comprises a driven gear, a differential shell, a half-axle gear, a planetary gear, a planetary gear shaft, a worm gear, a worm, a transmission gear, a motor gear and a motor, wherein the worm gear is fixed connected to the outer end of the planetary gear shaft, and the worm is engaged with the worm gear; one end of the worm is fixedly connected to one side of the differential shell through a bearing, and the other end of the worm penetrates through the other side of the differential shell to be fixedly connected with the transmission gear; the transmission gear is engaged with the motor gear; and a motor rotor is connected to a motor stator through a bearing, and the motor stator is fixed to the inner side of the differential shell. According to the active auxiliary steering differential gear, the differential torque can be accurately improved, the differential speedcan be accurately controlled, and thus, the direction of a vehicle is stabilized. The active auxiliary steering differential gear can steer synchronously along with a direction system, and the steering degree of the differential gear can also be greater than the steering degree of the direction system, so that the direction turning radian is improved. The active auxiliary steering differential gear is suitable for differential devices and central differential locks of all vehicles and can replace transfer cases in other forms.
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Description

technical field

[0001] The invention relates to a vehicle device, in particular to a vehicle active auxiliary steering differential device. Background technique

[0002] The differential used in mechanical transmission generally adopts a passive differential speed, which relies on the unequal torque of the left and right half shafts to generate a differential speed, but the differential torque is always output to the half shaft with a smaller torque. When the wheels slip, the The wheels spin and power is lost, immobilizing the vehicle. Ordinary differentials are also prone to understeer when turning at high speeds, and the phenomenon of "head pushing" or "tail flicking" appears. At present, the commonly used differential lock is to use external force to lock the output shaft on one side, so that the output shafts on both sides rotate synchronously, so as to achieve power transmission to the other shaft. In this way, there are problems such as large output power consumption,...

Examples

Embodiment 1

[0024] Such as figure 1 As shown, the active assisted steering differential device includes: driven gear 1, differential case 2, side gear 3, planetary gear 4, planetary gear shaft 5, worm gear 6, worm 7, transmission gear 8, motor gear 9 1. The motor 10, the driven gear 1 is fixedly connected to the outer side of the differential case 2, the planetary gear 4 is fixedly connected to the planetary gear shaft 5, the outer end of the planetary gear shaft 5 is movably connected to the differential case 2, and the planetary gear 4 and the half shaft The gear 3 meshes, the worm wheel 6 is hemispherical, and the worm wheel 6 is fixedly connected to the outer end of the planetary gear shaft 5, so that it can revolve together with the planetary gear 4, and can also rotate together. The worm 7 meshes with the worm wheel 6, and one end of the worm 7 passes through the The bearing is fixedly connected to one side of the differential case 2, the other end of the worm 7 passes through the o...

Embodiment 2

[0026] Such as figure 2 As shown, the active assisted steering differential device includes: driven gear 1, differential case 2, side gear 3, planetary gear 4, planetary gear shaft 5, worm gear 6, worm 7, transmission gear 8, motor gear 9 , Pneumatic device 10, the driven gear 1 is fixedly connected to the half shaft side of the differential case 2, the planetary gear 4 is fixedly connected to the planetary gear shaft 5, the outer end of the planetary gear shaft 5 is movably connected to the differential case 2, and the planetary gear 4 Mesh with the side gear 3, the worm gear 6 is circular, and the worm gear 6 is fixedly connected to the outer end of the planetary gear shaft 5, so that it can revolve together with the planetary gear 4, and can also rotate together. The worm 7 meshes with the worm gear 6, and the worm 7 One end is fixedly connected to one side of the differential case 2 through a bearing, the other end of the worm 7 passes through the other side of the differ...